The effect of host movement on multiple feeding by Aedes aegypti (L.) was observed in a laboratory experiment and the value of techniques developed to measure multiple meals was assessed. Multiple feeding on the arms of two human volunteers was significantly increased when both hosts moved their arms. If only one host was moving, a slight increase in multiple feeds over the level obtained with no movement was noted, although in such cases the majority of meals were taken from the stationary host. Statistical analyses of the results showed that the association between host movement and multiple feeding was highly significant.